Play with fire
To engage in risky behavior.

Walking on thin ice
To be in a risky or dangerous situation.

In the line of fire
In a position to be attacked or harmed.

A double-edged sword
Something that has both positive and negative consequences.

The calm before the storm
A period of peace before a significant event or crisis.

Between a rock and a hard place
Facing a difficult choice between two unpleasant options.

Crossing the line
Going beyond acceptable behavior.

In hot water
In trouble or danger.

Take your life in your hands
To put yourself in a dangerous situation.

Barking up the wrong tree
Pursuing a mistaken or misguided course of action.

A ticking time bomb
A situation that could lead to disaster at any moment.

On the edge of a cliff
In a dangerous or precarious situation.

Caught between the devil and the deep blue sea
In a situation with no good options.

Like playing with dynamite
Engaging in extremely dangerous behavior.

Treading on dangerous ground
Engaging in risky behavior or actions.

Danger lurking around the corner
Imminent danger that is not immediately visible.

Look before you leap
Consider the consequences before taking action.

Under the gun
In a situation of pressure or danger.

A snake in the grass
A hidden danger or deceitful person.

Run the risk
To expose oneself to danger or harm.